This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, under these assumptions, your costs would be:

1 Year

3 Year

5 Year

10 Year

Institutional Class

$29

$97

$171

$390

Minimums

Investors who wish to purchase, exchange or redeem shares held through a financial intermediary should contact the financial intermediary directly. The minimum initial investment amounts are shown below. The minimums may be reduced or waived in some cases. There are no minimums for subsequent investments.

Account Type

Institutional Class

Regular

$1,000

Individual Retirement Account (IRA)

$1,000

Custodial

$1,000

An investment in the Harbor Money Market Fund is not insured or guaranteed by the FDIC or any other government agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, it is possible to lose money by investing in the Fund.

Investors should carefully consider the investment objectives, risks, charges and expenses of a Harbor fund before investing. To obtain a summary prospectus or prospectus for this and other information, visit harborfunds.com or call 800-422-1050. Read it carefully before investing.

All trademarks or product names mentioned herein are the property of their respective owners.

The Adviser has contractually agreed to reduce the management fee to 0.18% through February 29, 2016. Only the Board of Trustees may modify or terminate this agreement.

The Adviser has contractually agreed to limit the Fund's operating expenses, excluding interest expense (if any), through February 29, 2016. Only the Board of Trustees may modify or terminate this agreement.

Represents the average daily dividends for the last seven days, assuming all dividends are reinvested, annualized by 365 days and divided by the net asset value per share at the end of the period. Does not reflect reimbursements or waivers currently in effect.

Average annualized income dividend over the last 7 days. Reflects reimbursements or waivers of fees currently in effect.

Average annualized income dividend over the last seven days. Does not reflect reimbursements or waivers currently in effect.

The Adviser has contractually agreed to reduce the management fee to 0.18% through February 29, 2016. Only the Board of Trustees may modify or terminate this agreement.

Represents the average daily dividends for the last seven days, assuming all dividends are reinvested, annualized by 365 days and divided by the net asset value per share at the end of the period. Reflects reimbursements or waivers of fees currently in effect.

Average annualized income dividend over the last seven days. Reflects reimbursements or waivers of fees currently in effect.